One hundred and eleven naiads from six different dragonfly species were investigated for the presence of metacercariae. Sixty-nine animals (62.2%) were infected with intensities up to more than 150 cysts per animal. The metacercarial cysts were characterized by light and scanning electron microscopy. Two types of metacercariae could be differentiated by morphological features of cyst surface, cyst wall and size.
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Infect Genet Evol
January 2025
Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand. Electronic address:
Paragonimiasis, caused by infection with lung flukes of the genus Paragonimus, remains a significant public health concern in Southeast Asia. In Lao People's Democratic Republic (Lao PDR), information on the distribution and genetic diversity of Paragonimus species is limited. This study investigated Paragonimus metacercariae in freshwater (mountain) crabs and analyzed their genetic diversity and phylogenetic relationships.
View Article and Find Full Text PDFVet Parasitol
January 2025
Clinic for Ruminants with Ambulatory and Herd Health Services, Ludwig-Maximilians-Universität München, Sonnenstrasse 16, 85764 Oberschleißheim, Germany. Electronic address:
The complex life cycle of the rumen fluke Calicophoron daubneyi is similar to that of the liver fluke Fasciola hepatica. Interestingly, C. daubneyi and F.
View Article and Find Full Text PDFJ Helminthol
January 2025
Institute of Biology, University of Graz, Universitätsplatz 2, Graz8010, Austria.
Surface flow of freshwater on Adriatic islands is rare due to the extreme permeability of the karst terrain. Hence, most helminthological studies of freshwater fishes in the Adriatic drainage have focused on mainland freshwater systems, while data from islands are scarce. We collected minnow, (Schinz, 1840), specimens in the Suha Ričina stream on Krk Island and screened them for helminth ectoparasites.
View Article and Find Full Text PDFParasitol Res
January 2025
Institute of Aquaculture, University of Stirling, 5F.-2, No. 196, Sec. 2, Xinglong Rd., Wenshan Dist., Taipei City, 116096, Taiwan (R.O.C.).
This study set out to characterise the in vitro development, including musculature, of the microphallid parasite of the barnacle Semibalanus balanoides (Linnaeus, 1767), Maritrema gratiosum Nicoll, 1907 collected in Scotland. An in vitro culture model was developed to obtain ovigerous adults of M. gratiosum and their morphology was observed.
View Article and Find Full Text PDFVet Res Commun
January 2025
Department of Clinical Sciences and Translational Medicine, Faculty of Medicine, University of Rome "Tor Vergata", Via Montpellier 1, Rome, 001 33, Italy.
In our study, fancy southern platyfish Xiphophorus maculatus (Cyprinodontiformes, Poeciliidae) were examined due to breathing disorders and mortality. Fish came from Vietnam farm and were redistributed by international wholesaler. In fish, loss of appetite and gasping near the water surface was observed.
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